1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index f85ecc9cfa1b..c8b3abc97a1e 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -371,6 +371,10 @@ struct zone {
         int                     all_unreclaimable; /* All pages pinned */
 #if defined CONFIG_COMPACTION || defined CONFIG_CMA
         unsigned long           compact_blockskip_expire;
+
+        /* pfns where compaction scanners should start */
+        unsigned long           compact_cached_free_pfn;
+        unsigned long           compact_cached_migrate_pfn;
 #endif
 #ifdef CONFIG_MEMORY_HOTPLUG
         /* see spanned/present_pages for more description */